* qatar/master:
  avio: add more documentation for AVIOContext.
  Parse sprite data for WMVP and WVP2, and decode sprites for the latter
  Replace outdated info on the FAQ
  Redefine sameq
  pad: fix example explanation
  gradfun: add notice from the MPlayer manual
  eval: add support for trunc, ceil, and floor functions
  documentation: add setdar and setsar description to filters.texi
  avio: document some members of AVIOContext.
  avio: document avio_close().
  avio: cosmetics, vertically align comments.
  avio: cosmetics, group the reading functions.
  avio: cosmetics, merge all the FF_API_OLD_AVIO blocks.
  avio: cosmetics, move AVIOContext to start of the file.
  avio: update file header.
  os: fix OpenBSD/PowerPC compilation
  pixfmt: add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE
  oggdec: fix demuxing chained audio streams
  fix typo

Conflicts:
	doc/filters.texi
	libavformat/avio.h
	libavutil/pixfmt.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This change is buggy.

This reverts commit d46c9f83.

Mostly useful for the audio-filters branch, to make more apparent the
distinction between configure_audio_filters() and
configure_video_filters().
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This patch completes the high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This patch lets e.g. dsputil_init chose dsp functions with respect to
the bit depth to decode. The naming scheme of bit depth dependent
functions is <base name>_<bit depth>[_<prefix>] (i.e. the old
clear_blocks_c is now named clear_blocks_8_c).

Note: Some of the functions for high bit depth is not dependent on the
bit depth, but only on the pixel size. This leaves some room for
optimizing binary size.

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

In high bit depth, the QP values may now be up to (51 + 6*(bit_depth-8)).

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

In high bit depth the pixels will not be stored in uint8_t like in the
normal case, but in uint16_t. The pixel size is thus 1 in normal bit
depth and 2 in high bit depth.

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The functions moved are used when decoding h264.
Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also add support for these formats in libswscale.

Needed for high bit depth h264 decoding.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Needed for high bit depth h264 decoding.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Unfortunately the output buffer size check assumes that the
input buffer is never over-consumed, thus this actually
also allowed to write outside the output buffer if "lucky".

Signed-off-by: Anton Khirnov <anton@khirnov.net>

FAQ could use some work. This updates a few little details.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

I think the documentation of sameq is causing confusion and misuse of
this option.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

"row" and "column" term positions in the explanation were inverted.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Add notice telling that the filter is designed for playback only.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>